<template>
	<div class="list" ref="wrapper">
		<div>
			<div class="area">
				<div class="title border-topbottom">当前城市</div>
				<div class="button-list">
					<div class="button-wrapper">
						<div class="button">
							<!--{{this.$store.state.city}}-->
							{{this.currentCity}}
						</div>
					</div>
				</div>
			</div>
			<div class="area">
				<div class="title border-topbottom">热门城市</div>
				<div class="button-list">
					<div 
						class="button-wrapper" v-for="item of hot" 
						:key="item.id" @click="handlerClickCity(item.name)"
					>
						<div class="button">{{item.name}}</div>
					</div>
				</div>
			</div>
			<div 
				class="area" v-for="(item, key) of cities" 
				:key="key" :ref="key"
			>
				<div class="title border-topbottom">{{key}}</div>
				<div class="item-list" v-for="innerItem of item" :key="innerItem.id">
					<div class="item border-bottom" @click="handlerClickCity(innerItem.name)">{{innerItem.name}}</div>
				</div>
			</div>
		
		</div>
	</div>
</template>

<script>
	import { mapState, mapMutations } from 'vuex'
	import Bscroll from "better-scroll"
	export default {
		name: "CityList",
		
		computed: {
			...mapState({
				currentCity: 'city'
			})
		},
		
		props: {
			cities: Object,
			hot: Array,
			letter: String
		},
		
		mounted () {
			this.scroll = new Bscroll(this.$refs.wrapper)
		},
		
		watch: {
			letter () {
				if(this.letter){
					const element = this.$refs[this.letter][0]
					this.scroll.scrollToElement(element)
//					console.log('---element: ', element);
				}
//				console.log('----watch letter:', this.letter)
			}
		},
		
		methods: {
			handlerClickCity(city){
//				this.$store.dispatch('changeCity', city)
//				this.$store.commit('changeCity', city)
				this.changeCity(city)
				this.$router.push('/')
//				alert(city)
			},
			...mapMutations(['changeCity'])
		}
	}
</script>

<style lang="stylus" scoped>
	@import '~@/assets/styles/varibles.styl'
	.border-topbottom
		&:before
			border-color: #ccc
		&:after
			border-color: #ccc
	.border-bottom
		&:before
			border-color: #ccc
	.list
		position: absolute
		top: 1.58rem
		left: 0
		right: 0
		bottom: 0
		overflow: hidden
		.title
			line-height: .54rem
			background: #eee
			padding-left: .2rem
			font-size: .26rem
			color: #777
		.button-list
			padding: .1rem .6rem .1rem .1rem
			overflow: hidden
			.button-wrapper
				width: 33.33%
				float: left
				.button
					margin: .1rem
					text-align: center
					padding: .1rem 0rem
					border: .02rem solid #ccc
					border-radius: .06rem
		.item-list
			.item
				line-height: .76rem
				color: #666
				padding-left: .2rem
</style>